Jump to content

2023 CX1: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
No edit summary
Fbrh47 (talk | contribs)
275 edits
m added image
Line 3: Line 3:
{{Use dmy dates|date=February 2023}}
{{Use dmy dates|date=February 2023}}
{{Infobox planet
{{Infobox planet
| minorplanet = yes
| minorplanet = yes
| name = {{mp|2023 CX|1}}
| name = {{mp|2023 CX|1}}
| background = #FFC2E0
| background = #FFC2E0
| image =
| image = Sar2667 as it entered Earth's atmosphere over the north of France.jpg
| image_size =
| image_size =
| caption =
| caption = Image of 2023 CX1 as it entered Earth's atmosphere on February 13, 2023
| discovery_ref = <ref name="MPC-object"/><ref name="MPEC-2023-C103"/>
| discovery_ref = <ref name="MPC-object"/><ref name="MPEC-2023-C103"/>
| discoverer = [[Krisztián Sárneczky]]
| discoverer = [[Krisztián Sárneczky]]
| discovery_site = [[Piszkéstető Station|Piszkéstető Stn.]]
| discovery_site = [[Piszkéstető Station|Piszkéstető Stn.]]
| discovered = 12 February 2023
| discovered = 12 February 2023
| mpc_name = {{mp|2023 CX|1}}
| mpc_name = {{mp|2023 CX|1}}
| alt_names = Sar2667
| alt_names = Sar2667
| pronounced =
| pronounced =
| named_after =
| named_after =
| mp_category = {{nowrap|[[Near-Earth object|NEO]]{{·}}[[Apollo asteroid|Apollo]]}}
| mp_category = {{nowrap|[[Near-Earth object|NEO]]{{·}}[[Apollo asteroid|Apollo]]}}
| orbit_ref = <ref name="jpldata"/>
| orbit_ref = <ref name="jpldata"/>
| epoch = 13 February 2023 ([[Julian day|JD]] 2459988.5)
| epoch = 13 February 2023 ([[Julian day|JD]] 2459988.5)
| uncertainty = 5
| uncertainty = 5
| observation_arc = 6.48 hours (0.27 d)<ref name="MPC-object"/>
| observation_arc = 6.48 hours (0.27 d)<ref name="MPC-object"/>
| earliest_precovery_date =
| earliest_precovery_date =
| aphelion = 2.453 [[Astronomical unit|AU]]
| aphelion = 2.453 [[Astronomical unit|AU]]
| perihelion = 0.918 AU
| perihelion = 0.918 AU
| time_periastron = 28 February 2022<ref name="Perihelion"/>
| time_periastron = 28 February 2022<ref name="Perihelion"/>
| semimajor = 1.686 AU
| semimajor = 1.686 AU
| eccentricity = 0.4552
| eccentricity = 0.4552
| period = 2.19 yr (799.2 days)
| period = 2.19 yr (799.2 days)
| mean_anomaly = 346.265[[Degree (angle)|°]]
| mean_anomaly = 346.265[[Degree (angle)|°]]
| mean_motion = {{Deg2DMS|0.4504130|sup=ms}} / day
| mean_motion = {{Deg2DMS|0.4504130|sup=ms}} / day
| inclination = 3.565°
| inclination = 3.565°
| asc_node = 323.833°
| asc_node = 323.833°
| arg_peri = 219.037°
| arg_peri = 219.037°
| moid = {{convert|0.000111|AU|km LD|abbr=on}}
| moid = {{convert|0.000111|AU|km LD|abbr=on}}
| jupiter_moid =
| jupiter_moid =
| mean_diameter = ≈ {{val|1|u=m}}<ref name="EarthSky-20230212"/><ref name="IMO-20230212"/>
| mean_diameter = ≈ {{val|1|u=m}}<ref name="EarthSky-20230212"/><ref name="IMO-20230212"/>
| rotation =
| rotation =
| albedo =
| albedo =
| spectral_type =
| spectral_type =
| magnitude =
| magnitude =
| abs_magnitude = {{val|32.604|0.564}}<ref name="jpldata"/><br/>32.64<ref name="MPC-object"/>
| abs_magnitude = {{val|32.604|0.564}}<ref name="jpldata"/><br/>32.64<ref name="MPC-object"/>
}}
}}


Revision as of 12:10, 13 February 2023

2023 CX1
Image of 2023 CX1 as it entered Earth's atmosphere on February 13, 2023
Discovery[1][2]
Discovered byKrisztián Sárneczky
Discovery sitePiszkéstető Stn.
Discovery date12 February 2023
Designations
2023 CX1
Sar2667
NEO · Apollo
Orbital characteristics[3]
Epoch 13 February 2023 (JD 2459988.5)
Uncertainty parameter 5
Observation arc6.48 hours (0.27 d)[1]
Aphelion2.453 AU
Perihelion0.918 AU
1.686 AU
Eccentricity0.4552
2.19 yr (799.2 days)
346.265°
0° 27m 1.487s / day
Inclination3.565°
323.833°
28 February 2022[4]
219.037°
Earth MOID0.000111 AU (16,600 km; 0.043 LD)
Physical characteristics
≈ 1 m[5][6]
32.604±0.564[3]
32.64[1]

2023 CX1, previously known as Sar2667, was a metre-sized asteroid or meteoroid that entered Earth's atmosphere on 13 February 2023 03:00 UTC and disintegrated as a meteor over the English Channel near Normandy, France.[5] It was discovered seven hours before impact by Hungarian astronomer Krisztián Sárneczky, at Konkoly Observatory's Piszkéstető Station in Mátra Mountains, Hungary.[2] Before it impacted, 2023 CX1 was originally a near-Earth asteroid on an Earth-crossing Apollo-type orbit.[1]

Discovery

Krisztián Sárneczky first imaged 2023 CX1 on 12 February 2023 at 20:18 UTC, when it was less than 233,000 km (145,000 mi; 0.61 LD) from Earth and inside the orbit of the Moon.[2][7] At discovery, the asteroid moved quickly in the northern hemisphere sky at an angular rate of 14 arcseconds per minute, with an accelerating radial velocity of 9 km/s (5.6 mi/s) towards Earth and an initial apparent magnitude of 19.4.[7] Recognizing it as a near-Earth object candidate, Sárneczky gave it the temporary designation Sar2667 and reported the discovery to the Minor Planet Center's Near-Earth Object Confirmation Page (NEOCP), calling for further follow-up by other observatories around the world.[2] The Višnjan Observatory at Tičan, Croatia observed the asteroid starting at 21:03 UTC and confirmed it was headed for impact with Earth.[2][6]

The meteoroid was last observed on 13 February 2023 02:46:55 UTC by the Rantiga Osservatorio at Tincana, Italy, just 13 minutes before impact and three minutes before it entered Earth's shadow and became invisible at 02:50 UTC.[2][7] 2023 CX1 was approximately 14,500 km (9,000 mi) from Earth's center (8,100 km or 5,000 mi altitude) at that time.[8]

By the time 2023 CX1 was published, at least 20 observatories have observed and have submitted astrometry of the meteoroid before impact to the Minor Planet Center.[2]

Impact

2023 CX1 entered the atmosphere at 03:00 UTC and traveled eastward over the coast of Normandy, France along the English Channel, falling at a 40–50° inclination relative to vertical.[6] As it experienced atmospheric drag during its high-speed entry, it burned as a bright meteor that was seen by witnesses from Northern France, Great Britain, Belgium and the Netherlands.[9]

2023 CX1 is the seventh asteroid discovered before impacting Earth.[5] It is also Sárneczky's second discovery of an impacting asteroid, after 2022 EB5 which he discovered a year prior in March 2022.

See also

Notes

References

  1. ^ a b c d "2023 CX1". Minor Planet Center. Retrieved 13 February 2023.
  2. ^ a b c d e f g "MPEC 2023-C103 : 2023 CX1". Minor Planet Electronic Circular. Minor Planet Center. 13 February 2023. Retrieved 13 February 2023.
  3. ^ a b "JPL Small-Body Database Browser: (2023 CX1)" (2023-02-13 last obs.). Jet Propulsion Laboratory. Retrieved 13 February 2023.
  4. ^ "Perihelion @ 2.3377 AU on 28 Feb 2022". JPL Horizons (Perihelion occurs when rdot flips from negative to positive). Jet Propulsion Laboratory. Retrieved 13 February 2023.
  5. ^ a b c Whitt, Kelly Kizer (12 February 2023). "Small asteroid impacts Earth's atmosphere over France". EarthSky. Retrieved 13 February 2023.
  6. ^ a b c Antier, Karl (13 February 2023). "Imminent asteroid entry over the Channel on Feb.13, 02h59 UT". International Meteor Organization. Retrieved 13 February 2023.
  7. ^ a b c "Horizons Batch from 2023-Feb-12 20:18 and 2023-Feb-13 03:00". JPL Horizons. Jet Propulsion Laboratory. Retrieved 13 February 2023.
  8. ^ "Horizons Batch on 2023-Feb-13 02:46:55". JPL Horizons. Jet Propulsion Laboratory. Retrieved 13 February 2023.
  9. ^ "Fireball Events in 2023 → 937-2023". International Meteor Organization. 13 February 2023. Retrieved 13 February 2023.
Retrieved from "https://en.wikipedia.org/w/index.php?title=2023_CX1&oldid=1139111029"